From rest to moderate intensity, what explains the decreased ESV? decreased afterload Frank-Starling Mechanism decreased EDV increased sympathetic adrenal response increased filling time
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The question asks what physiological mechanism explains the decrease in end-systolic volume (ESV) when transitioning from rest to moderate exercise intensity. ESV is the amount of blood remaining in the ventricle after contraction. Show more…
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In response to increased ventricular filling, myocardial cells stretch. Myocardial contractility decreases. Total peripheral resistance increases. Sympathetic nerves release norepinephrine.
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